20 14K Gold Filled Clamshells Knot Covers Bead Tips This is a new set of 20 14 karat gold filled clamshell bead tips Used to cover the knots on the end of beaded necklaces or bracelets to join to a clasp Jewelry that is gold filled has gold content equal to 1/20th or more of the total weight of the metal in the piece Each measures approximately 3 .5 mm (1/8") in diameter with a 1 mm hole